[ltp] Everlasting Fan

[Ovidiu Achim]

Thanks Alex. I'm waiting for it.

Cheers,
Ovi

On 6/14/05, Alex Deucher <alexdeucher@gmail.com> wrote:
> On 6/14/05, Ovidiu Achim <amorox@gmail.com> wrote:
> > Hi,
> >
> > I tried to look for it on dri-devel and xorg without success. Google
> > gives no hint also. It would be nice if you remember where you have
> > seen it.
> >
>=20
> er... sorry, it looks like someone mentioned it to me in a private
> email.  I'll ask him if he plans to release the code.  If you are
> included to play with it yourself (be careful), you'll want to
> manipulate the XCLK and MCLK.  take a look at radeon_driver.c in the
> xorg ddx to see how clocks are normally set.
>=20
> Alex
>=20
> > Thanks,
> > Ovi
> >
> >
> > On 6/14/05, Alex Deucher <alexdeucher@gmail.com> wrote:
> > > On 6/14/05, Thomas Hartwig <t.hartwig.news@itth.com> wrote:
> > > > Hello,
> > > >
> > > > unfortunately ATI still makes no advantages on linux, so I'm wonder=
ing
> > > > if anybody can give some deeper help on debugging the xorg provided
> > > > radeon driver.
> > > >
> > > > My experiences are that the temperature of the GPU is the most bigg=
est
> > > > problem related to the fan for my T40p. Typical values are:
> > > > CPU: 44=B0C GPU: 52=B0C HDD: 32=B0C PCI: 42=B0C. I have decided to =
turn off the
> > > > fan below 50=B0C, but independent of the output of X or console the
> > > > temperature is always at about 50=B0C or higher for the GPU.
> > > >
> > > > The radeon driver has the nice option "DynamicClocks" which might a=
lter
> > > > the power of the display. I'm wondering now if you can fine tune th=
is in
> > > > a better way and see what is going on. I have already taken a small=
 look
> > > > into the source but I'm afraid without much time I'm not able to
> > > > disassemble this ;-)
> > >
> > > The dynamic shifting of the clocks is handled by the hardware, itself=
.
> > >  I'm not sure exactly what its algorithm is.  Pretty much all the cod=
e
> > > does is enable the right combination of enable dynamic clocking bits
> > > in the various clocks.  BTW, the code has some bugs in it that I need
> > > to fix at some point.  Also just to clarify, this is not powerplay.
> > > Powerplay is more involved and ati hasn't released the information
> > > needed to do it.
> > >
> > > > What would be helpful is: at what clock the GPU is always running a=
nd
> > > > what the strategy for the regulator is.
> > > > Is there anybody out there who might be interested in looking at or=
 has
> > > > already done?
> > >
> > > A while back someone posted a utility (maybe on xorg, or dri-devel)
> > > that allowed you to statically adjust the GPU clock rate.
> > >
> > > >
> > > > Perhaps I will contact the author of the code as well.
> > > >
> > >
> > > Ati wrote the code, I just cleaned it up a bit and committed it to cv=
s.
> > >
> > > Alex
> > >
> > > > Best regards
> > > > Thomas
> > > >
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